CN112777132A

CN112777132A - Reactor core column transportation fixing tool and fixing method

Info

Publication number: CN112777132A
Application number: CN202110052215.8A
Authority: CN
Inventors: 蒋娜; 刘相镇; 谢辉; 严子红; 楚啸; 焦北平; 赵义香; 许超群; 雷永杰
Original assignee: Shandong Electrical Engineering and Equipment Group Co Ltd
Current assignee: Shandong Electrical Engineering and Equipment Group Co Ltd; Shandong Power Equipment Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-05-11

Abstract

The invention relates to a reactor core column transportation and fixation tool, which comprises: go up disk body and lower disk body and four and draw the screw rod, go up disk body and lower disk body and include respectively: the disc, disc outside edge evenly sets up four U type grooves, and the inboard in four U type grooves corresponds respectively and sets up four lugs, and the lug of going up the disk body is located the upper surface of last disk body, and the lug of lower disk body is located the lower surface of lower disk body. Threads are respectively arranged at two ends of the pull screw rods, and the four pull screw rods respectively penetrate through the four U-shaped grooves of the upper tray body and the lower tray body and are fastened through bolts; the surface of the disc is provided with three rows of parallel channel steel, the surface of the disc is additionally provided with a reinforcing plate, the position of the reinforcing plate corresponds to that of the U-shaped groove, and the reinforcing plate is provided with an opening with the same size as the U-shaped groove. The invention also relates to a method for transporting and fixing the reactor core limb. The fixing tool is simple in structure and low in economic cost; the fixing method is convenient to operate and firm in fixing, and the safety of the transportation of the reactor core limb is improved.

Description

Reactor core column transportation fixing tool and fixing method

Technical Field

The invention belongs to the technical field of reactors, and particularly relates to a fixing tool and a fixing method for reactor core columns during transportation.

Background

In the transportation process of the iron core column of the reactor, the iron core column of the parallel reactor has special structure, no fixed point and higher requirement on levelness, so that the safety and stability of the iron core column are difficult to ensure in the transportation process. The bottom of an iron core column is fixed on a pressure plate by a magnetic crane to be transported in a plant for a short distance in the prior fixing device, and the iron core column is not firmly fixed for long-distance transportation outside the plant, especially for a road section with bumpy road, so that safety accidents are easy to happen. Along with the improvement of the capacity and the voltage grade of the reactor, the diameter of the iron core column is continuously increased, and higher requirements are provided for the transportation stability and the safety.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides a reactor core column fixing tool and a fixing method which can be reliably fixed and are convenient for long-distance transportation. The technical scheme for realizing the aim of the invention is as follows:

the utility model provides a frock is fixed in transportation of reactor core limb, includes: the iron core column is positioned between the upper disc body and the lower disc body and on the inner sides of the four pull screw rods. Go up disk body and lower disk body include respectively: the disc, the diameter of disc is greater than the diameter of iron core post, the outside border of disc evenly be provided with four U type grooves, the inboard in four U type grooves corresponds respectively and sets up four lugs, the lug of going up the disk body is located the upper surface of last disk body, the lug of lower disk body is located the lower surface of lower disk body. Two ends of each pulling screw rod are respectively provided with threads, and the four pulling screw rods respectively penetrate through the four U-shaped grooves of the upper tray body and the lower tray body and are fastened through bolts;

the surface of the disc is provided with three rows of parallel channel steel, the surface of the disc is additionally provided with a reinforcing plate, the position of the reinforcing plate corresponds to that of the U-shaped groove, and the reinforcing plate is provided with an opening with the same size as the U-shaped groove.

The upper tray body, the lower tray body and the integral structure of the transportation and fixing tool have the advantages that the performance and the economic cost of the product are both considered, and the cost performance is high.

A reactor core column transportation and fixing method applies the reactor core column transportation and fixing tool and comprises the following steps:

step 1, counting the height, the outer diameter and the weight of an iron core column of the reactor, and determining the size of a disc of a fixed tool and the length of a pull screw, wherein the diameter of the disc is required to be larger than that of the iron core column;

step 2, placing the lower plate with one side welded with the channel steel, the reinforcing plate and the lifting lug downwards on the leveled ground, and bonding a rubber plate on the other side of the lower plate;

step 3, protecting the iron core column by using a stretching film, slowly placing the iron core column at the central position of the disc, and then installing an upper disc body on the upper part of the iron core column to ensure that the iron core column and the centers of the upper and lower disc bodies are on the same axis;

step 4, assembling a pull screw rod, and screwing bolts at two ends of the pull screw rod;

and 5, moving the fixed tool and the iron core column to the transport vehicle by using an electric forklift or a travelling crane, and fixing the lifting lugs and the pull screw rods on the fixed tool to the transport vehicle by using a steel wire rope or a pull belt, wherein the binding is firm and reliable.

The invention has the beneficial effects that:

the fixing tool for the transportation of the reactor core limb is simple in structure and low in economic cost, and can greatly improve the safety of the transportation of the reactor core limb.

The fixing method applied to the reactor core limb transportation is convenient to operate and firm in fixing, and improves the safety of the reactor core limb transportation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are specific embodiments of the invention, and that other drawings within the scope of the present application can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a sectional view of a reactor core limb transportation and fixation tool in an embodiment of the invention;

FIG. 2 is a schematic structural diagram of an upper tray and a lower tray according to an embodiment of the present invention;

in the figure, 1 is an iron core column, 2 is a lower disc body, 3 is a pull screw, 4 is an upper disc body, 5 is a disc, 6 is a channel steel, 7 is a reinforcing plate, 8 is a limiting block, and 9 is a lifting lug.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

As shown in fig. 1, the sectional view of a reactor core limb transportation and fixation tool in an embodiment of the invention; fig. 2 is a schematic structural diagram of an upper tray and a lower tray according to an embodiment of the present invention. The utility model provides a frock is fixed in transportation of reactor core limb which characterized in that includes: an upper disc body 4, a lower disc body 2 and four pull screw rods 3.

The upper disc body 4 and the lower disc body 2 respectively comprise: disc 5, the outer fringe of disc 5 evenly be provided with four U type grooves, disc 5's material is the carbon steel, disc 5's diameter is greater than the diameter of iron core post 1. By manufacturing the disc 5 with a larger diameter, the requirement of the iron core columns 1 with the diameters smaller than that of the disc 5 in all specifications is met, and the universality of the fixing tool is realized.

In order to enhance the mechanical strength of the fixed tool and facilitate the lifting of the forklift, three rows of parallel channel steel 6 are arranged on the surface of the disc 5, wherein the position of the middle row of channel steel 6 corresponds to that of the U-shaped groove. When fixed frock of needs transport and iron core post 1, the preceding fork of fork truck cooperation channel-section steel 6's recess makes fixed frock and iron core post 1's transport more convenient.

The inner sides of the four U-shaped grooves are correspondingly provided with four lifting lugs 9 respectively, the lifting lugs 9 of the upper tray body 4 are positioned on the upper surface of the upper tray body 4, the lifting lugs 9 of the lower tray body 2 are positioned on the lower surface of the lower tray body 2, and the lifting lugs 9 can meet the requirements of fixed binding in the travelling crane lifting and transporting process in a workshop. The two ends of the pull screw rods 3 are respectively provided with M30 threads, and the four pull screw rods 3 respectively penetrate through the four U-shaped grooves of the upper tray body 4 and the lower tray body 2 and are fastened through bolts. The pulling screw rod 3 is subjected to quenching and tempering so as to improve the mechanical property of the pulling screw rod 3; the thread of the pull screw rod 3 is blackened so as to achieve the purpose of rust prevention.

In order to strengthen the strength of the contact surfaces of the upper disc body 4 and the lower disc body 2 with the bolts, a reinforcing plate 7 is additionally arranged. The position of the reinforcing plate 7 corresponds to the position of the U-shaped groove, the reinforcing plate 7 is provided with an opening which is consistent with the size of the U-shaped groove and is used for the pull screw rod 3 to pass through, and the lifting lug 9 is arranged on the reinforcing plate 7. In order to prevent the pull screw rod 3 from being separated from the U-shaped groove of the disc 5 and the opening of the reinforcing plate 7, the end part of the opening of the reinforcing plate 7 is provided with a limiting block 8, and the limiting block 8 plays a limiting role in limiting the pull screw rod 3.

The channel steel 6 and the reinforcing plate 7 are fixed on the disc 5 in a welding mode, and the limiting block 8 and the lifting lug 9 are fixed on the reinforcing plate 7 in a welding mode.

As the preferred embodiment of the reactor core limb transportation and fixation tool, the reactor is a BKD-120000/800-110 reactor, the outer diameter of the core limb is phi 770mm, the height is 3200mm, and the total number of the reactor core limb is 23. Transporting in two sections, wherein 1-12 cakes are taken as a first section, 13-23 cakes are taken as a second section, and the heights of the first section and the second section are 1660mm and 1540mm respectively. According to the size and the weight of the core column of the BKD-120000/800-110 reactor, the thickness and the outer diameter of the disc 5 are respectively determined to be 10mm and phi 1300mm, the length of the pull screw rod 3 is determined to be 2000mm, the thread length of two ends of the pull screw rod 3 is determined to be 400mm, and the reactor core column is suitable for fixed transportation of the core column with the sectional height of 1200-1900 mm.

One side of the disc 5 of the lower disc body 2, which is welded with the channel steel 6, the reinforcing plate 7, the limiting block 8 and the lifting lug 9, faces downwards and is placed on the leveling ground, and the other side can be bonded with a rubber plate to prevent the iron core from being damaged. Two sections of core columns 1 are respectively protected by tensile films and slowly fall to the central position of a disc 5, then an upper disc body 4 is installed on the upper portion of each core column 1, one surface of a lifting lug 9 of the upper disc body 4 faces upwards, and the core columns 1, the upper disc body 4 and the lower disc body 2 are ensured to be on the same axis as far as possible. Assembling the pull screw rod 3, and screwing down bolts at two ends of the pull screw rod 3. The length of the lower part of the pull screw rod 3 extending out of the lower disc body 2 is not more than 80mm, so that the stability of the lower disc body 2 is prevented from being influenced. Finally, the fixed tool and the iron core column 1 can be moved to a transport vehicle by an electric forklift or a travelling crane, the lifting lugs 9 and the pull screw rods 3 on the fixed tool are fixed to the transport vehicle by steel wire ropes or pull belts, and the binding is firm and reliable.

step 1, counting parameters such as height, outer diameter and weight of reactor core columns with different capacities, and determining the size of a disc of a fixed tool, the length of a pull screw rod and the like, wherein the diameter of the disc is required to be larger than that of the core column. The disc with a larger diameter is manufactured to meet the requirements of iron core columns with diameters smaller than that of the disc, and the universalization of the fixing tool is realized.

In the step 1, three rows of channel steel are arranged on the surface of the disc in parallel in order to enhance the mechanical strength of the steel plate and facilitate the lifting of a forklift. In order to enhance the strength of the contact surface between the disc body and the nut, a reinforcing plate is additionally arranged on the surface of the disc. In order to prevent the pull screw from being separated from the U-shaped groove of the disc, the end part of the opening of the reinforcing plate is provided with a limiting block for limiting. In order to improve the mechanical property of the pulling screw rod, quenching and tempering are carried out; in order to achieve the purpose of rust prevention, the thread part of the pulling screw rod is subjected to blackening treatment.

And 2, one surface of the lower disc body, which is welded with the channel steel, the reinforcing plate and the lifting lug, faces downwards and is placed on the leveled ground, and the other surface of the lower disc body can be bonded with a rubber plate to prevent the iron core from being damaged.

And 3, protecting the iron core column by using a stretching film, slowly placing the iron core column at the central position of the disc, and then installing an upper disc body on the upper part of the iron core column to ensure that the iron core column and the centers of the upper and lower disc bodies are on the same axis as much as possible.

And 4, assembling the pull screw rod, and screwing the bolts at the two ends of the pull screw rod. The length of the lower part of the pull screw rod extending out of the lower disc body is not more than 80mm, so that the stability of the lower disc body is prevented from being influenced.

And 5, moving the fixed tool and the iron core column to a transport vehicle by using an electric forklift or a travelling crane, and fixing the lifting lugs and the pull screws on the fixed tool to the transport vehicle by using steel wire ropes or pull belts, wherein the binding is firm and reliable.

Finally, it is to be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims

1. Frock is fixed in transportation of reactor core limb, its characterized in that includes: go up disk body (4) and lower disk body (2) and four draw screw rods (3), last disk body (4) and lower disk body (2) include respectively: the diameter of the disc (5) is larger than that of the iron core column (1), four U-shaped grooves are uniformly formed in the outer edge of the disc (5), four lifting lugs (9) are correspondingly formed in the inner sides of the four U-shaped grooves respectively, the lifting lugs (9) of the upper disc body (4) are located on the upper surface of the upper disc body (4), and the lifting lugs (9) of the lower disc body (2) are located on the lower surface of the lower disc body (2); threads are respectively arranged at two ends of each pulling screw rod (3), and the four pulling screw rods (3) respectively penetrate through the upper disc body (4) and the four U-shaped grooves of the lower disc body (2) and are fastened through bolts;

the surface of disc (5) be equipped with three rows of channel-section steel (6) that are parallel to each other, reinforcing plate (7) are add on the surface of disc (5), the position of reinforcing plate (7) corresponding with the position of U type groove, reinforcing plate (7) are seted up with the unanimous opening of U type groove size.

2. The reactor core limb transportation and fixation tool according to claim 1, wherein the channel steel (6) in the middle row corresponds to the U-shaped groove in position.

3. The reactor core limb transportation and fixation tool according to claim 2, characterized in that a limiting block (8) is arranged at the opening end of the reinforcing plate (7).

4. The reactor core limb transportation and fixing tool according to claim 3, wherein the channel steel (6) and the reinforcing plate (7) are fixed to the disc (5) in a welding mode, and the limiting block (8) and the lifting lug (9) are fixed to the reinforcing plate (7) in a welding mode.

5. The reactor core limb transportation and fixation tool according to claim 1, wherein the disc (5) is made of carbon steel.

6. The reactor core limb conveying and fixing tool according to claim 1, wherein the pulling screw rod (3) is a pulling screw rod subjected to thermal refining, and the thread of the pulling screw rod (3) is a thread subjected to blackening.

7. The reactor core limb transportation and fixing tool as recited in any one of claims 1 to 6, characterized in that the reactor is a BKD-120000/800-110 reactor, the outer diameter of the core limb is phi 770mm, the height is 3200mm, the reactor is transported in two sections, 1 to 12 cakes are used as a first section, 13 to 23 cakes are used as a second section, and the heights of the first and second sections are 1660mm and 1540mm respectively; the thickness and the outer diameter of the disc (5) are respectively 10mm and 1300mm, the length of the pull screw rod (3) is 2000mm, and the thread length at two ends of the pull screw rod (3) is 400 mm.

8. A reactor core limb transportation and fixation method is characterized in that the reactor core limb transportation and fixation tool according to claim 7 is applied, and comprises the following steps:

9. The method for transporting and fixing the reactor core limb according to claim 8, wherein in the step 1, three rows of channel steel are arranged on the surface of the disc in parallel to reinforce the mechanical strength of the steel plate and facilitate the lifting of a forklift, the surface of the disc is additionally provided with the reinforcing plate to reinforce the strength of the contact surface of the disc body and the nut, the opening end part of the reinforcing plate is provided with a limiting block to prevent the pull screw from coming out of the U-shaped groove of the disc, the pull screw is subjected to quenching and tempering to improve the mechanical performance, and the thread part of the pull screw is subjected to blackening treatment to achieve the purpose of rust prevention.

10. The reactor core limb transportation fixing method according to claim 9, wherein the length of the lower portion of the pulling screw rod protruding out of the lower disc body in step 4 is not more than 80 mm.